Number 4: On The Road Again'On the Road Again' was written by Willie Nelson for part of the soundtrack to the 1980 film Honeysuckle Rose. It won a Grammy and made it into Rolling Stone's 500 Greatest Songs of All Time (at 471). The song has featured in TV shows and films including Forrest Gump and Shrek. Nelson is seen above in his film role for The Dukes Of Hazzard.